<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8" />
    <title>倒计时</title>
    <link rel="stylesheet" type="text/css" href="css/index.css" />
    <script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>
    <script type="text/javascript" src="js/countDown.js"></script>
</head>
<body>
<p class="countDown">
    <span class="validate_info">手机号</span>
    <input type="text" id="mobile" datatype="m" />
    <span id="smsSendBtn">获取短信验证码&nbsp;</span>
</p>
</body>
</html>